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Hack!
Time Limit: 2.0 s
Memory Limit: 64 MB
Hackable ✓
# 7193. Data Structure You've Never Heard Of
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Custom Test
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The problem was used in the following contest:
ICPCCamp 2016. Day 1. ftiasch's Contest #4
Petrozavodsk Winter 2016. Day 7. Xiaoxu Guo Contest 4
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